#include"iostream"

using namespace std;

const int N = 1010;

int n, m, q;
int a[N][N], s[N][N];

int main()
{
	scanf("%d%d%d", &n, &m, &q);
	for(int i = 1; i <= n; i++)
		for(int j = 1; j <= m; j++)
	 		scanf("%d", &a[i][j]);
	
	for(int i = 1; i <= n; i++)
		for(int j = 1; j <= m; j++)
	 		s[i][j] = s[i - 1][j] + s[i][j - 1] - s[i - 1][j - 1] +a[i][j];
	
	while(q--)
	{
		int x1, y1 , x2 ,y2;
		scanf("%d%d%d%d", &x1, &y1, &x2, &y2);
		printf("%d\n",s[x2][y2] - s[x1 -1][y2] -s[x2][y1 - 1] + s[x1 - 1][y1 - 1]);
	}
	return 0;
}